Electronic Device

1. An electronic device, comprising: a display module comprising a first non-folding portion, a first folding portion configured to be folded and having a predetermined radius of curvature when folded, a second non-folding portion, a second folding portion configured to be folded and having a radius of curvature different from the radius of curvature of the first folding portion when folded, and a third non-folding portion, wherein the first non-folding portion, the first folding portion, the second non-folding portion, the second folding portion, and the third non-folding portion are spaced apart from each other in a first direction; a first plate disposed under the display module, and comprising a plurality of first openings overlapping the first folding portion and a plurality of second openings overlapping the second folding portion; a second plate comprising a first substrate overlapping a portion of the first folding portion and the first non-folding portion, a second substrate spaced apart from the first substrate and overlapping a portion of the first folding portion and the second non-folding portion, and a third substrate spaced apart from the second substrate and overlapping the third non-folding portion; an adhesive layer disposed between the first plate and the second plate and comprising a first portion overlapping the first folding portion and a second portion spaced apart from the first portion; and a plurality of sticks disposed between the second substrate and the third substrate and spaced apart from each other in the first direction, wherein a portion of the second portion of the adhesive layer overlapping the second folding portion is exposed through spaces between adjacent sticks among the sticks.

2. The electronic device of claim 1, wherein each of the sticks has a thickness equal to or greater than about 80 micrometers and equal to or less than about 1000 micrometers.

3. The electronic device of claim 1, wherein a pitch between the adjacent sticks among the sticks is equal to or greater than about 100 micrometers and equal to or less than about 300 micrometers.

4. The electronic device of claim 1, wherein each of the sticks has a width in the first direction that is about equal to or greater than two times and about equal to or less than three times of a width of a portion of the first plate, which is disposed between adjacent second openings among the second openings.

5. The electronic device of claim 1, wherein each of the sticks has a width that gradually decreases in a direction from the first plate toward the second plate.

6. The electronic device of claim 1, further comprising: a hinge member disposed under the second plate and comprising first guide portions overlapping the first folding portion and second guide portions overlapping the second folding portion, wherein the hinge member is configured to be folded with the display module.

7. The electronic device of claim 6, wherein at least one of the second guide portions is coupled to at least one of the sticks.

8. The electronic device of claim 7, further comprising: a nut disposed under at least one of the sticks; and a bolt provided to one of the second guide portions and fastened to the nut.

9. The electronic device of claim 8, further comprising: an intermediate adhesive layer, wherein the intermediate adhesive layer is disposed between the second plate and the hinge member and comprises: a third portion overlapping the first non-folding portion; a fourth portion spaced apart from the third portion and overlapping the second non-folding portion; and a fifth portion spaced apart from the fourth portion with the sticks interposed therebetween.

10. The electronic device of claim 8, wherein each of the sticks has a thickness different from a thickness of the second plate.

11. The electronic device of claim 7, further comprising: an intermediate adhesive layer disposed between the second plate and the hinge member and comprising a third portion overlapping the first non-folding portion and a fourth portion spaced apart from the third portion, wherein the sticks are attached to a portion of the fourth portion, which overlaps the second folding portion.

12. The electronic device of claim 1, wherein an area in which the second openings of the first plate are arranged is greater than an area in which the first openings of the first plate are arranged.

13. The electronic device of claim 1, wherein the display module further comprises an upper surface through which an image is displayed, and a lower surface opposite to the upper surface, wherein the first folding portion is configured to be folded such that the upper surface of the first non-folding portion of the display module faces the upper surface of the second non-folding portion of the display module, and the second folding portion is configured to be folded such that the lower surface of the second non-folding portion of the display module faces the lower surface of the third non-folding portion.

14. The electronic device of claim 13, wherein the first folding portion comprises extension portions adjacent to the first non-folding portion and the second non-folding portion and a curved portion disposed between the extension portions, and a separation distance between adjacent extension portions among the extension portions is changed along the first direction when the first folding portion is in a folded state.

15. The electronic device of claim 13, wherein the second folding portion is configured to be folded with respect to two folding axes, and a width in the first direction of a stick disposed between the two folding axes is greater than a width in the first direction of the sticks adjacent to the stick disposed between the folding axes.

16. The electronic device of claim 1, further comprising: a window disposed on the display module; a protective layer; and a barrier layer, wherein the protective layer and the barrier layer are disposed between the first plate and the display module.

17. The electronic device of claim 1, wherein the second plate comprises one of a metal material and a plastic material.

18. The electronic device of claim 1, wherein the first plate comprises one of stainless steel, titanium, and a reinforced fiber composite material.

19. An electronic device, comprising: a display module comprising a first non-folding portion, a first folding portion configured to be folded and having a predetermined radius of curvature when folded, a second non-folding portion, a second folding portion configured to be folded and having a radius of curvature different from the radius of curvature of the first folding portion when folded, and a third non-folding portion, wherein the first non-folding portion, the first folding portion, the second non-folding portion, the second folding portion, and the third non-folding portion are spaced apart from each other in a first direction; a first plate disposed under the display module, and comprising a plurality of first openings overlapping the first folding portion and a plurality of second openings overlapping the second folding portion; a second plate comprising a first substrate overlapping a portion of the first folding portion and the first non-folding portion, a second substrate spaced apart from the first substrate and overlapping a portion of the first folding portion and the second non-folding portion, and a third substrate spaced apart from the second substrate and overlapping the third non-folding portion; a plurality of sticks disposed between the second substrate and the third substrate and spaced apart from each other in the first direction; and a hinge member disposed under the second plate, configured to be folded with the display module, and comprising first guide portions overlapping the first folding portion and second guide portions overlapping the second folding portion, wherein at least one of the second guide portions is coupled to at least one of the sticks.

20. The electronic device of claim 19, further comprising: a nut disposed under at least one of the sticks; and a bolt provided to one of the second guide portions and fastened to the nut.

21. The electronic device of claim 19, further comprising: an intermediate adhesive layer disposed between the second plate and the hinge member, and comprising a first portion overlapping the first non-folding portion and a second portion spaced apart from the first portion, wherein the second guide portions are attached to the sticks and a portion of the intermediate adhesive layer, which overlaps the second folding portion.

22. The electronic device of claim 19, wherein the display module further comprises an upper surface through which an image is displayed, and a lower surface opposite to the upper surface, wherein the first folding portion is configured to be folded such that the upper surface of the first non-folding portion of the display module faces the upper surface of the second non-folding portion of the display module, and the second folding portion is configured to be folded such that the lower surface of the second non-folding portion of the display module faces the lower surface of the third non-folding portion.